package com.wang.util;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.IOException;
import java.io.InputStream;

public class MybatisUtils {
    //使用Mybatis第一步： 获取SQLSessionFactory对象
    private static SqlSessionFactory sqlSessionFactory = null;
    static {
        try {
            String resource = "mybatis-config.xml";
            InputStream inputStream = Resources.getResourceAsStream(resource);
            sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        }catch (IOException e){
            e.printStackTrace();        }
    }
    //接下来可以获取SqlSession实例
    public static SqlSession getSqlSession(){
        return sqlSessionFactory.openSession();
    }
}
